powerstat
Measures the power consumption of a computer that has a battery power source or supports the RAPL interface.
TLDR
Measure power with the default of 10 samples with an interval of 10 seconds
$ powerstat
Measure power with custom number of samples and interval duration
$ powerstat [interval] [number_of_samples]
Measure power using Intel's RAPL interface
$ powerstat -R [interval] [number_of_samples]
Show an histogram of the power measurements
$ powerstat -H [interval] [number_of_samples]
Enable all statistics gathering options
$ powerstat -a [interval] [number_of_samples]